baber/WOPTO huggingface dataset:
Patent GB-1004675-A (GB)
Title: Electrical gate circuits
IPC: H04B1/74
Filed: 1962-04-05
Abstract: 1,004,675. Diode gating circuits. WESTERN ELECTRIC CO. Inc. April 5, 1962 [April 14, 1961], No. 13102/62. Heading H3P. A gate circuit comprises a series arm having two separate paths 40, 47 connecting an input terminal 26 to an output terminal 28, each path including a pair of oppositely poled asymmetrically conducting devices 37, 42 and 43, 48; and a plurality of shunt arms connecting each path to ground, at least one of each plurality including an asymmetrically conducting device 74, 77 and another one of each plurality including a bias source 111, 112 for opening or closing the gate; the two paths forming a balanced bridge with respect to the source. In the conducting state of the gate, diodes 37, 42, 43, 48 conduct and the characteristic impedance is determined by the shunt impedances 64, 65, 69, 70. Capacitors 80, 81 and C.R. networks 33, 35 provide compensation for the reactance of the components of the gate. In the non-conducting state of the gate diodes 74, 77 are conducting, and diodes 37, 42, 43, 48 are held non-conducting by the bias developed across C.R. networks 84, 85 and 86, 87. The balance of the bridge network formed by the two paths with respect to the bias source 111, 112 is determined by the values of resistors 38, 41, 45, 46 in the conducting state, and by resistors 39, 43, 44, 49 in the non-conducting state. The arrangement may be modified for balanced input signals by the provision of a similar gating circuit in the other series arm of the circuit, Fig. 1 (not shown). Specifications 973,733 and 1,001,462 are referred to.
Patent GB-1453478-A (GB)
Title: Photographic cameras
IPC: G03B7/089
Filed: 1974-03-25
Abstract: 1453478 Cameras ASAHI KOGAKU KOGYO KK 25 March 1974 [26 March 1973] 13161/74 Heading G2A A camera has a diaphragm ring 20 which sets the aperture and adjusts a resistance in a shutter control circuit (not shown) and a manually operable lever 24 which, on actuation, (a) opens a switch 8 to store the value of the adjusted resistance in the control circuit and (b) couples the ring 20 to an indicator dial 35, whereby rotation of ring 20 alters the aperture from the value stored in the control circuit and dial 35 indicates the difference between these apertures. Thus the shutter opens for a time calculated on the basis of an aperture differing from the aperture actually used. The purpose of this is to allow the photographer to compensate for scenes having an unusual light distribution e.g. a skier photographed against snow. As shown, anti-clockwise rotation of lever 24 causes a cam 25 to open the memory switch 8 and, via levers 26, 29, moves a gear 31 into mesh with gears 21 and 34, gear 21 being coupled to ring 20 and gear 34 to dial 35. Preferably the dial 35 indicates the aperture difference by means of symbols or a scale visible in the view-finder.
Patent GB-938821-A (GB)
Title: Improved temperature control scheme
Inventor: GARTSIDE MAURICE JAMES
IPC: G04C23/14
Filed: 1961-04-12
Abstract: 938,821. Control systems for storage heating apparatus. SATCHWELL CONTROLS Ltd. April 11, 1962 [April 12, 1961], No. 13175/61. Class 38 (4). A temperature control system for storage heating apparatus wherein the heating of the apparatus takes place only during a " permitted " period such as an " off-peak " period between 7 p.m. and 7 a.m. comprises a time switch 26 which is closed only during the " offpeak " period and which is provided with a dial 14 carrying two gear-wheels 15, 16 meshing with pinions 17, 18 which drive into a differential 19 by way of two electromagnetic clutches 20, 22, the clutch 20 being energized by means of a cycling thermostat 28 situated outside a building containing the storage heating apparatus on the thermostat comprising a heater 29 so that it functions as a loss meter, the input to the differential 19 by way of the gearing 15, 17 and clutch 20 being an indication of the integrated heat losses during a twenty-four hour period 7 p.m. to 7 p.m. which are required to be made good during the next permitted heating period. The output of the differential 19 drives a pinion 23 which drives a gear-wheel 24 carrying a switch 25 which when it reaches a cam 30 carried by the gear-wheel 16 switches on the heater of the storage device by means of a relay 27 with holding contacts 31a and energizes a clutch 20 whereby the gear-wheel 16 drives into the differential 19 whereby the switch 25 is then driven back towards the datum position the position of the switch at any instant being an indication of the heating demand which is unsatisfied. The heaters are switched off by the opening of the switch 26 at the end of the " off peak " period. In a second embodiment the integration is effected by a motor driving an integrating disc through sun and planet wheels and a spring-loaded brake device, a second motor driving a memory disc so that the integrating disc and the memory disc co-operate to make a switch which energizes the heater of the storage apparatus.
Patent GB-798392-A (GB)
Title: Process for the sulpho-cementation of steels and ferrous alloys
IPC: C23C8/34
Filed: 1955-02-16
Abstract: Articles made of steel or a ferrous alloy are subjected, in a heated muffled firstly to a current of carbonaceous cementation gas and then to a current of a mixture of nitrogen and sulphur vapour at a temperature not lower than 1000 DEG C., to increase their resistance to wear.  The cementation gas may be a mixture of air, hydrocarbon (e.g. methane, propane or town gas) and ammonia and the proportions of the mixture of nitrogen and sulphur vapour are preferably: N2 95-97 per cent; S 5-3 per cent.
Patent GB-132360-A (GB)
IPC: F25B1/08
Abstract: 132,360. Cortesi, C. Sept. 14, 1918. Refrigerating, compression machines and proce,.sses for.-Comprises a refrigerating-vessel in which the Liquid falls in streams, a condenser connected thereto by means of an exhauster, and means operated by the air pressure in the condenser for raising the liquid from the lower to the upper part of the refrigerator. In the upper part of the refrigerator is a grating d through which the liquid falls in streams over a series of brine pipes t and collects in the lower part r, the level being maintained constant by a ball-cock cistern t<1> supplied from the condenser c. A channel p<1> formed by a partition p allows the evaporated liquid to be withdrawn through a pipe o by means of a pump or ejector (not shown) and returned to the condenser. The circulation of the liquid in the refrigerator is effected by an injector p<2> (or by a pulsometer) located in the pipe q and operated by pressure air in a pipe s connected to the condenser.
Patent GB-1004668-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1962-10-05
Abstract: The invention comprises a compound of the general formula <FORM:1004668/C2/1> wherein W represents a b -hydroxymethylene group, an acyloxymethylene group wherein the acyl radical is that of a hydrocarbon carboxylic acid containing from 1-12 carbon atoms inclusive or a carbonyl group and R represents hydrogen or acyl as above defined and a process for the production of compounds of the formula <FORM:1004668/C2/2> wherein Ac represents an acyl radical as defined above by subjecting a compound of the formula <FORM:1004668/C2/3> wherein X represents chlorine, bromine or iodine to treatment with silver fluoride, and then if desired hydrolysing, or hydrolysing and oxidizing, the thus produced compounds to yield the corresponding 3-hydroxy and 3-keto derivatives respectively. Oxidation may be effected with chromic acid.  The 17-hydroxyl compounds may be obtained by subjecting the corresponding 17-acylate to saponification.  Pharmaceutical composition having progestational activity and containing the above compounds are administered orally or parenterally in pills, tablets, capsules, syrups, elixirs, suspensions and solutions.
Patent GB-1036680-A (GB)
Title: Improvements in manufacture of boron-containing substances
Inventor: CAMPBELL RAMSEY G
IPC: C01B35/06
Filed: 1959-04-17
Abstract: Diborane is produced by passing hydrogen, hydrogen chloride, and boron trichloride, together with boron or a boron compound, into a reaction zone maintained at 700-1500 DEG  C. to form chlorinated boranes, disproportionating the chlorinated boranes to diborane and boron trichloride, separating diborane, and recycling the residual hydrogen, hydrogen chloride, and boron trichloride to the reaction zone together with fresh hydrogen.  The boron compound used is boron carbide or an unsubstituted boron hydride with a hydrogen to boron ratio of less than 3: 1.  The process operates continuously, hydrogen and boron or the boron compound being fed in amounts corresponding to the diborane withdrawn.  The effluent from the reaction zone may be quenched in boron trichloride and then fractionated to form a stream containing hydrogen and hydrogen chloride, which is recycled direct, and a stream containing chlorinated borane and boron trichloride, which is disproportionated and fractionated into diborane product and boron trichloride which is recycled.  A cyclone separator may be interposed between the quenching zone and the fractionation zone to remove contaminants.  The solid boron or boron compound may form a fluidized, fixed, or moving bed in the reactor;  when boron carbide is used, solid is continuously withdrawn to remove carbon by-product. Higher solid, liquid, or vaporous boron hydrides may be used as the feed with a bed of carbon or graphite particles and in this case the feed of hydrogen is reduced.  In examples, a tubular reactor contains a bed of boron carbide or elemental boron; disproportionation is carried out at 65-80 DEG  C.  Other examples use a bed of granular coke or boron carbide to which is added solid boron hydride polymers or volatilized pentaborane or tetraborane.
Patent GB-323991-A (GB)
Title: Loader controlling means for concrete mixers
IPC: B28C7/08
Filed: 1929-04-29
Abstract: 323,991. Jaeger, G. April 29, 1929. Feeding-devices. - In concrete-mixing machines charged by a tilting hopper, means are provided for controlling the raising and lowering gear comprising a clutch on the winding shaft operated by a rocking cam the actuating means for which are interconnected with means for applying a brake to the shaft whereby on the clutch being thrown out by the hopper reaching the top of its stroke the brake is automatically applied. The hopper 10, shown in plan, is raised by cables 13 wound on drums 14 on a shaft 15 which is driven through a friction clutch, the female member 16<a> of which can be adjustably fixed on the shaft by means of a setscrew 18 and bevelled collar 21 in engagement with a pin 22. The co-operating member 16, driven by a chain 17, is moved into driving engagement by a moving collar 38 having cam faces engaging corresponding faces on a fixed member 39. The collar 38 is rocked by means of a link 36 connected thereto through a spring- influeced radial member and operated by a crank arm 35 on a shaft 27. The latter has a hand lever 27<a> held in positions at opposite sides of a dead centre by a spring 29, and is fitted with brake-operating means 26. The shaft is also fitted with a crank 30 connected by a link 32 with a member 33 which is operated when the hopper reaches its highest position by the engagement of a projection 10<b> with a similar projection 34 on the member 33. By these means, on the completion of the lifting operation, the clutch 16 is thrown out of gear and the brake applied to retard the fall of the hopper. The clutch is thrown into gear again to start the lifting movement by operating the handle 27<a>. The hopper may be retained in its elevated position by a detent 45 thrown into engagement with internal teeth on the brake drum 24.
Patent GB-1285147-A (GB)
Title: Sanitizing presoak compositions
IPC: C11D3/395
Filed: 1970-03-19
Abstract: 1285147 Sanitizing composition FMC CORP 19 March 1970 [25 March 1969] 13313/70 Heading A5E A composition for cleansing, sanitizing and deodorizing fabrics soiled with organic and bacterial matter comprises 1-15%by weight of an N-chloro compound which hydrolyses to yield positive chlorine ions in an amount to provide in aqueous solution 50-250 p.p.m. of available chlorine, sulphamic acid in an amount to provide an NH to Cl<SP>+</SP> ratio in solution of 0.5 to 5:1, 20-50% by weight of a polyphosphate, 20-40% by weight of sodium tetraborate having an Na 2 O to B 2 O 3  ratio of about 1 to 2.5 and having up to 5 moles of water of hydration, 0-40% by weight of an inorganic buffer salt which has an acid reaction in aqueous solution, and 2.5-10% by weight of an anionic or a nonionic surfactant.
Patent GB-1375566-A (GB)
IPC: C04B7/44
Filed: 1971-05-05
Abstract: 1375566 Cement F L SMIDTH & CO AS and NIRO ATOMIZER AS 10 March 1972 [5 May 1971] 13314/71 Heading C1H [Also in Division F4]  Cement clinker is made from cement raw slurry in a rotary kiln plant 1 which incorporates a suspension dryer 5 in which the slurry is brought into a finely divided state and dried while suspended in the hot rotary kiln gases so as to be converted into pulverulent cement raw material subsequently fed to the rotary kiln. In operation, a fan 7, arranged between the dryer 5 and an electrostatic dust precipitator 9, draws the gases through the rotary kiln at a velocity between 9 and 12 m./sec. The dryer 5 is preferably a spray dryer, having a rotating wheel 13 which hurls the slurry in small droplets into the interior of the dryer.
Patent GB-133268-A (GB)
IPC: B65G11/00
Abstract: 133,268. Lister, C. H. May 5, 1919. Shoots.-Spiral shoots comprise flanged sections B secured to a central post A by clamps C which pass over flanges 14 on the sections and through slots 15. One end 18 of each clamp is bent over to form a lug 20 abutting against and overlapped by the other end 19. The outer ends of the sections B are flanged and connected together by a guard-rail.
Patent GB-249365-A (GB)
Title: Improvements in fluid actuated brake mechanism for motor and other power driven vehicles
IPC: B60T11/16
Filed: 1925-05-21
Abstract: 249,365. Hayley, S. T., and Whitehead, A. J. May 21, 1925. Fluid-pressure; blocks and shoes acting on drums; force-transmitting mechanism.-Fluidpressure brake mechanism for motor and other vehicles comprises a main cylinder containing a piston adapted to be actuated to force fluid into auxiliary cylinders the pistons of which are connected to the cam levers of the brake shoes. The piston rod h of the main cylinder f is connected to the pedal e by means of a link h<1> with or without the interposition of a two armed lever. Auxiliary cylinders i, j are connected by rigid pipes k to the main cylinder and the pistons thereof may be connected to the cam levers o of the respective brakes by cables n which may be connected directly to the piston rods or as shown in Fig. 5 by means of levers q. The cam lever o of the brakes may be disposed within the brake drum as shown in Fig. 7. The cup leather 2 of each cylinder is held in position on the piston rod by a flat washer 3 and a dished washer 4 whereby deformation of the leather is prevented the washer 4 being perforated to permit the fluid pressure to force the leather against the cvlinder wall. The area of the pistons of the auxiliary cylinders i, j may be equal to or greater than that of the main cylinder f and the area, of the pistons of the rear brakes may be greater than that of the front brakes to give a corresponding difference in braking pressure.
Patent GB-133432-A (GB)
IPC: F41A21/14
Abstract: 133,432. Harries, H. J. Oct. 8, 1918. Pneumatic; design; sound of discharge, modifying.-Relates to pneumatic guns of the powder-charge type in which the gases generated by firing a cartridge act on a piston and drive it forwards to compress and force air into the chamber of the gun. The invention consists in providing an adjustable valve in the end of the compression chamber, which can be set to open when the compression has attained a certain value dependent upon the desired range and corresponding elevation of the gun. In the construction shown, air in rear of the piston f, Fig. 1, is compressed in the chamber b by firing a cartridge d and passes into the barrel a through a port c. The range is regulated by the adjustable relief valve n, Fig. 3, which is set to correspond with the elevation of the gun by a pointer-carrying handle o. On completion of the compression stroke, the piston strikes a rod i and operates the slide valve k, thereby opening the front end of the cylinder b to exhaust, preferably through a silencer. The gun is intended to throw depth-charges, or for use as a trench mortar. According to the Provisional Specification, the barrel a is made of ribbed aluminium with a steel liner.
Patent GB-705890-A (GB)
Title: Lamp housing for cinema projector, particularly for narrow gauge film
IPC: G03B21/20
Filed: 1952-05-27
Abstract: 705,890. Kinematograph projectors. STEATITMAGNESIA AKT.-GES. May 27, 1952 [Aug. 28, 1951], No. 13401/52. Class 97(1) A projector lamphouse is secured to the projector by its vertical front wall to which are attached two hollow side walls, a cover portion, a bottom wall surrounding the lamp socket and a detachable rear wall. One form is shown in perpendicular vertical sections. The wall 4 is secured to the projector wall 3 by spacers 5 and screws 6 and carries hollow walls 7, 8, the cover 9, a bottom wall, and a rib 16 to which is normally secured the wall 14 which can be tilted about its lower edge. The reflector 17 is cemented to a holder 17a having a lug 32 secured by a screw 33 to a bracket 18 having lugs 19 slidable in guides 20 in the walls 7, 8. Air may be circulated through the spaces in the walls 7, 8. The bottom wall and the cover 9 are apertured for cooling. The holder 2 for the lamp 1 is adjustable in, and secured by a screw 29 in a ring 30 held by a fork 10 tiltable about a screw 31. The light passing through a hole in the wall 3 and through the shutter 23 is reflected on to the film-gate by a mirror.
Patent GB-495444-A (GB)
Title: Improvements relating to the control of aircraft engines driving variable-pitch airscrews
IPC: B64C11/30
Filed: 1937-05-11
Abstract: 495,444. Fluid-pressure servomotorcontrol systems. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and CLINCH, A. C. May 11, 1937, No. 13418. [Class 135] [Also in Group XXXIII] A power plant assembly for an aeroplane which includes a variable-pitch screw propeller under centrifugal governor control is also provided with connections from the governor to the throttle valve of the engine. A variablepitch propeller is provided with hydraulic pitch varying gear 11, 12, coupled by pipes 16, 17 to a pump 21 driven by a shaft 22 from the engine shaft. Bevel gears 23, 24 drive a centrifugal governor 26, a lever 34 thereof providing control of the pump flow in the pipes 16, 17. A further lever 40 operated by the governor is connected by linkages with a control valve 81 of a hydraulic piston unit 71 which through linkages operate upon the throttle lever 46. This throttle control is further linked by a rod 53 with a booster control 61 that effects its control through a second valve apparatus 65. In the event of the pitch changes not producing sufficiently quickly a control of the revolutions per minute, the overriding throttle control comes into play. In a modification, the linkage 40 is replaced by an electric linkage, the arm 39 in this case moving between contact points in an electric circuit which also includes a solenoid adapted to operate the hydraulic piston valve. It may also be provided that the two hydraulic valves shall control separate hydraulic pistons which are suitably linked to the link 47 instead of using a single piston 71. Specifications 134,258, 151,917, 250,292, [all in Class 114], 450,587, and 454,154 are referred to.
Patent GB-283774-A (GB)
Title: Improvements in and relating to machines for stripping tobacco leaves
IPC: A24B5/06
Filed: 1927-05-20
Abstract: 283,774. Phillips, M. G. P. May 20, 1927. Tobacco. - A stripping - machine comprises a combl i k e stripping- member and means adjustable relatively to the member for varying the effective area of the spaces between the teeth. For adjusting the comb itself transversely to its support 1, the latter is formed with slots 5 and is further drilled for the passage of screws 6, which also engage blocks 7 slidable in the slots and secured rigidly to the comb 9. This adjustment permits the regulation of the amount by which the tops of the teeth of the comb 9 project above the support 1. To prevent the jamming of small stalks between the roots of the teeth, and the passage of part of the leaf-web when larger leaves are being stripped, a second member 14 is adjustably mounted in front of the comb 9. Similar slots 10, screws 11, and blocks 11<a> to those used for the first member are employed, and the member 14 may be mounted on the comb, or on the main support 1 through the provision of slots in the comb. Proper engagement with the recesses of the bar 14 is ensured by spring-pressed blocks 15<a> mounted on an upper bar 16. Blocks, springs, &c. may also be provided upon the member 14, which may itself be resiliently mounted, and may be in sections. Such sections may consist of wood, metal, &c., mounted on springs, or may be in the form of U-springs arranged with the limbs parallel to the leaf, the upper and free limb of the spring engaging the stem; in other forms, blocks of rubber, or a strip of rigid material with an india-rubber flange, may be used. In all cases the leaf-engaging surface should be slightly grooved.
Patent GB-582956-A (GB)
Title: Improvements in or relating to photomechanical reproduction
IPC: G03F5/24
Filed: 1944-07-17
Abstract: 582,956. Photo - mechanical printing processes. POWERS, F. T. July 17, 1944, No. 13628. Convention date, Sept. 1, 1943. [Class 98 (ii)] In a half-tone process, a high contrast antihalation light-sensitive, sheet is exposed in a, camera with the half-tone screen in normal position, the screen is removed, and the sheet is re-exposed to the same subject. The material may be panchromatic. On removal of the half-tone screen, a clear glass sheet of equal thickness may be substituted. The material is developed. in a high contrast developer, fixed and washed, and is then printed on to sensitized metal, which is developed and etched. The process may be applied to the production of three-colour or four-colour process plates, and the screen or subject may be rotated between the production of the component negatives.
Patent GB-540281-A (GB)
Title: Improvements in television
IPC: H04N5/16
Filed: 1940-08-31
Abstract: 540,281. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 31, 1940, No. 13695. Convention date, Aug. 31, 1939. [Class 40 (iii)] In a television transmitter utilizing a cathode-ray tube having a mosaic screen of electron-emissive capacity elements scanned by a beam having nearly zero velocity at the screen, blanking impulses are periodically applied to the control grid to produce " pedestals " on which synchronizing pulses are subsequently added. As shown in Fig. 1, the cathode-ray tube comprises in known manner an indirectly heated cathode 2, a control grid 3, accelerating electrodes 4, 6, a focusing coil 9, a screen 11, a slotted shield 17, a collecting electrode 19, and scanning coils 16 and plates 14. The screen 11 is of the type common in iconoscopes, but is translucent to receive the image of an object 12 projected thereon by an optical system 13. Blanking pulses from a generator 26 are applied to the control electrode 3 through an amplifier 32 and a condenser 5. The picture signal with the blanked out level shown in Fig. 2 is transmitted by coupling 22 to amplifier 20 feeding a transmitter 23 through another amplifier 21 in which synchronizing pulses from the generator 26 are added. The blanked out level or "pedestal" may be raised above the blacklevel by illuminating the screen 11 from a constant light source 41 or by the introduction of pulses through a switch 46 into the amplifier 21. The complete signal is then as shown in Fig. 5